diff --git a/steps/interpolate_visibilities.cwl b/steps/interpolate_visibilities.cwl
index e05e6f4945ad6f5807670e35dd69d8d24a53ac91..99e6f0e38347ce7189fa46a63c68d29c2f10f6aa 100644
--- a/steps/interpolate_visibilities.cwl
+++ b/steps/interpolate_visibilities.cwl
@@ -39,7 +39,7 @@ outputs:
   - id: msout
     type: Directory
     outputBinding:
-      glob: $(inputs.msin)
+      glob: $(inputs.msin.basename)
 label: interpolate_visibilities
 hints:
   - class: DockerRequirement